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> Question 8 6 pts (Q6) The standard emf (Eºcell) for the cell using the overall...
The standard emf for the cell using the overall cell reaction below is +2.20 V: 2Al(s) + 3I2 (s) → 2Al3+ (aq) + 6I− (aq) The emf generated by the cell when [Al3+] = 5.0 ⋅ 10−3 M and [I−] = 0.010 M is ________ V. The standard emf for the cell using the overall cell reaction below is +2.20 V: (s) + (s) (aq) + (aq) The emf generated by the cell when [] = 5.0 M and []...
The standard emf for the cell using the overall cell reaction below is +2.20 V: 2Al(s) + 3I2(s) → 2AI3+(aq) + 6I-(aq) The emf generated by the cell when [AI3+] = 4.0 × 10-3 M and [I-] = 0.015 M is ________ V. The standard emf for the cell using the overall cell reaction below is +2.20 V: 2Al(s) + 3I2(s) 2AI3+(aq) + 6I-(aq) The emf generated by the cell when [AI3+] = 4.0 × 10-3 M and [I-] =...
9) The standard emf for the cell using the overall cell reaction below is +2.20 V: 2Al(s) + 3I2(s) --> 2AI3+(aq) + 6I-(aq) The emf generated by the cell when [AI3+] = 3.0 × 10-3 M and [I-] = 0.50 M is _____________ V.
Part complete The standard emf for the cell using the overall cell reaction below is +2.20 V: 2Al(s) + 3I2 (s) → 2Al3+ (aq) + 6I− (aq) The emf generated by the cell when [Al3+] = 4.0 ⋅ 10−3 M and [I−] = 0.015 M is ________ V.
2. Calculate the standard cell emf (cell potential) for electrochemical cells having the following overall cell reactions and predict if they are spontaneous: a) Sn(s) + Pb2+ (aq) → Sn?" (aq) + Pb(s) Eºcell = Volts. Spontaneous? b) 2002 (aq) + Zn?"(aq) → 2Co3+ (aq) + Zn(s) Eºcell__volts; Spontaneous? c) Cl2(g) + 2Br (aq) + 2Cl(aq) + Br2(1); E° = volts; Spontaneous?
QUESTION 47 Determine the equilibrium constant for the following reaction at 581 K. HCN(g) + 2 H2(g) → CH3NH2(g) ΔH° = -158 kJ; ΔS°= -219.9 J/K 3.99 × 1012 3.26 × 10-12 13.0 2.97 × 1011 0.002 4.92 × 1025 3.4 × 10-12 None of these 523.2 QUESTION 48 The standard emf for the cell using the overall cell reaction below is +2.20 V: 2Al(s) + 3I2 (s) → 2Al3+ (aq) + 6I- (aq) The emf generated by the cell when [Al3+] = 1.3 ×...
2. Using the information provided, calculate the standard cell potential, Eºcell, for the reaction below: Half-reaction Cr3+ (aq) + 3e- → Cr(s) Fe2+ (aq) + 2e- → Fe(s) Fe3+ (aq) + e- + Fe2+ (s) Sn4+ (aq) + 2e- + Sn2+ (aq) E° (V) -0.74 -0.440 +0.771 +0.154 3Sn(aq) +2Cr(s) →2Cr" (aq) +35n²+ (aq)
Question 25 (4 points) The standard cell potential (Eºcell) of the reaction below is +1.73 V. The value of AG for the reaction is _____ kJ 3Ni (s) + 2 Au?+ (aq) + 3 Ni2+ (aq) + 2 Au(s) O +5.00x102 O +1.00x103 2140 0-1.00x103 0-5.00x102
6 pts Question 7 (25) The standard cell potential (Eºcell) of voltaic cell is +1.10 V. Calculate the value of AGⓇ (kJ/mol) for the voltaic cell if 2 electrons are transferred between two half cells. -388 -212 +388 -24.3 +212
Question 6 0.5 pts Use tabulated half-cell potentials (found in appendix IV-D) to calculate Eºcell and then calculate AGºrxn for the following reaction at 25 °C. 2Fe3+ (aq) + 3Sn(s) Fe(s) + 3Sn2(aq) Hint: the standard potential of Fe3+ + 3e - Fe(s) is -0.036 and the standard potential of Sn2+ + 2e → Sn(s) is -0.140. AG° = -5 kJ/mol AG° = -10 kJ/mol AG° = -20 kJ/mol AG° = -30 kJ/mol AG° = -60 kJ/mol